This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 22 |
| 2 | 148 |
| 3 | 503 |
| 4 | 1286 |
| 5 | 2884 |
| 6 | 5992 |
| 7 | 11749 |
| 8 | 21912 |
| 9 | 39064 |
| 10 | 66854 |
| 11 | 110269 |
| 12 | 175938 |
| 13 | 272468 |
| 14 | 410812 |
| 15 | 604669 |
| 16 | 870916 |
| 17 | 1230072 |
| 18 | 1706794 |
| 19 | 2330405 |
| 20 | 3135454 |
| 21 | 4162308 |
| 22 | 5457776 |
| 23 | 7075765 |
| 24 | 9077968 |
| 25 | 11534584 |
| 26 | 14525070 |
| 27 | 18138925 |
| 28 | 22476506 |
| 29 | 27649876 |
| 30 | 33783684 |